source: TI05-delivery/trunk/src/bbftp-server-3.2.0/bbftpd/createreceivesock.c @ 1392

Subversion URL: http://proj.badc.rl.ac.uk/svn/ndg/TI05-delivery/trunk/src/bbftp-server-3.2.0/bbftpd/createreceivesock.c@1392
Revision 1392, 6.2 KB checked in by spascoe, 13 years ago (diff)

More missing #includes exposed when compiling on easterly.

Line 
1/*
2 * bbftpd/createreceivesock.c
3 * Copyright (C) 1999, 2000, 2001, 2002 IN2P3, CNRS
4 * bbftp@in2p3.fr
5 * http://doc.in2p3.fr/bbftp
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
20 */ 
21
22/****************************************************************************
23
24 
25 Create the receive socket and connect to it.
26
27RETURN VALUE :
28 In case of failure no socket is opened and -1 is returned.
29 If connect fail due to interrupted system call 0 is returned.
30 In case of success the socket is returned.
31 
32 createreceivesock.c v 1.3.0 2000/03/20
33                     v 1.4.0 2000/03/20 - Correct bug on sprintf ( forgot the
34                                           socknum)
35                                          Bug shown by gfarrache
36                     v 1.6.0 2000/03/24 - Set Send buffer to TCPWINSIZE for
37                                          get option
38                     v 1.6.1 2000/03/24 - Portage to OSF1
39                                        - Set the socket in non block mode
40                     v 1.8.7 2000/05/24 - Change headers
41                     v 1.9.3 2000/10:12 - Use FIXEDDATAPORT in order to
42                                          manage the local port
43                     v 1.9.4 2000/10/16 - Make all sockets blocking in order
44                                          to prevent the error in case of lack
45                                          of memory
46                                        - Supress %m
47                     v 2.0.1 2001/04/23 - Correct indentation
48                     v 2.0.2 2001/05/04 - Correct include for RFIO
49
50*****************************************************************************/
51#include <bbftpd.h>
52
53#include <stdio.h>
54
55#include <errno.h>
56#include <fcntl.h>
57#include <netinet/in.h>
58#include <netinet/tcp.h>
59#include <bbftpd_private_log.h>
60#include <sys/socket.h>
61#include <sys/types.h>
62#include <unistd.h>
63#if HAVE_STRING_H
64# include <string.h>
65#endif
66
67#include <common.h>
68#include <daemon.h>
69
70extern struct sockaddr_in his_addr;        /* Remote adresse */
71extern struct sockaddr_in ctrl_addr;    /* Local adresse */
72extern int  fixeddataport ;
73
74int createreceivesock(port,socknum,logmessage)
75    int        port ;
76    int        socknum ;
77    char    *logmessage ;
78{
79    int    sock ;
80    struct sockaddr_in data_source ;
81    int    on = 1 ;
82    int tcpwinsize = TCPWINSIZE ;
83    int    addrlen ;
84    int    retcode ;
85
86    sock = socket ( AF_INET, SOCK_STREAM, IPPROTO_TCP ) ;
87    if ( sock < 0 ) {
88        bbftpd_log(BBFTPD_ERR, "Cannot create receive socket %d : %s",socknum,strerror(errno));
89        sprintf(logmessage,"Cannot create receive socket %d : %s",socknum,strerror(errno)) ;
90        return (-1) ;
91    }
92    if ( setsockopt(sock,SOL_SOCKET, SO_REUSEADDR,(char *)&on,sizeof(on)) < 0 ) {
93        close(sock) ;
94        bbftpd_log(BBFTPD_ERR,"Cannot set SO_REUSEADDR on receive socket %d : %s",socknum,strerror(errno)) ;
95        sprintf(logmessage,"Cannot set SO_REUSEADDR on receive socket %d : %s",socknum,strerror(errno)) ;
96        return (-1) ;
97    }
98    if ( setsockopt(sock,SOL_SOCKET, SO_RCVBUF,(char *)&tcpwinsize,sizeof(tcpwinsize)) < 0 ) {
99        close(sock) ;
100        bbftpd_log(BBFTPD_ERR,"Cannot set SO_RCVBUF on receive socket %d : %s",socknum,strerror(errno)) ;
101        sprintf(logmessage,"Cannot set SO_RCVBUF on receive socket %d : %s",socknum,strerror(errno)) ;
102        return (-1) ;
103    }
104    if ( setsockopt(sock,SOL_SOCKET, SO_SNDBUF,(char *)&tcpwinsize,sizeof(tcpwinsize)) < 0 ) {
105        close(sock) ;
106        bbftpd_log(BBFTPD_ERR,"Cannot set SO_SNDBUF on receive socket %d : %s",socknum,strerror(errno)) ;
107        sprintf(logmessage,"Cannot set SO_SNDBUF on receive socket %d : %s",socknum,strerror(errno)) ;
108        return (-1) ;
109    }
110    if ( setsockopt(sock,IPPROTO_TCP, TCP_NODELAY,(char *)&on,sizeof(on)) < 0 ) {
111        close(sock) ;
112        bbftpd_log(BBFTPD_ERR,"Cannot set TCP_NODELAY on receive socket %d : %s",socknum,strerror(errno)) ;
113        sprintf(logmessage,"Cannot set TCP_NODELAY on receive socket %d : %s",socknum,strerror(errno)) ;
114        return (-1) ;
115    }
116    data_source.sin_family = AF_INET;
117#ifdef SUNOS
118    data_source.sin_addr = ctrl_addr.sin_addr;
119#else
120    data_source.sin_addr.s_addr = INADDR_ANY;
121#endif
122    if ( fixeddataport == 1 ) {
123        data_source.sin_port = htons(ntohs(ctrl_addr.sin_port) - 1);
124    } else {
125        data_source.sin_port = 0;
126    }
127    if ( bind(sock, (struct sockaddr *) &data_source,sizeof(data_source)) < 0) {
128        close(sock) ;
129        bbftpd_log(BBFTPD_ERR,"Cannot bind on receive socket %d : %s",socknum,strerror(errno)) ;
130        sprintf(logmessage,"Cannot bind on receive socket %d : %s",socknum,strerror(errno)) ;
131        return (-1) ;
132    }
133    data_source.sin_addr = his_addr.sin_addr;
134    data_source.sin_port = htons(port);
135    addrlen = sizeof(data_source) ;
136    retcode = connect(sock,(struct sockaddr *) &data_source,addrlen) ;
137    if ( retcode < 0 ) {
138        if ( errno == EINTR ) {
139            /*
140            ** In this case we are going to tell the calling program
141            ** to retry so we close the socket and set the return code
142            ** to zero
143            */
144            close(sock) ;
145            bbftpd_log(BBFTPD_ERR,"Cannot connect receive socket %d : %s, telling calling to retry ",socknum,strerror(errno)) ;
146            return 0 ;
147        } else {
148            close(sock) ;
149            bbftpd_log(BBFTPD_ERR,"Cannot connect receive socket %d : %s",socknum,strerror(errno)) ;
150            sprintf(logmessage,"Cannot connect receive socket %d : %s",socknum,strerror(errno)) ;
151            return (-1) ;
152        }
153    }
154    return sock ;
155}
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